Home / 494,320.40-682,135.65-279,447.65

Finding the Fourth Proportional to 494,320.40, 682,135.65 and 279,447.65

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Solution

The fourth proportional to 494,320.40, 682,135.65 and 279,447.65 is: 385,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,320.40 : 682,135.65 = 279,447.65 : x
  2. Step 2: Convert to fraction form
    494,320.40/682,135.65 = 279,447.65/x
  3. Step 3: Cross multiply
    494,320.40x = 682,135.65 × 279,447.65
  4. Step 4: Simplify right side
    494,320.40x = 190,621,204,373.72
  5. Step 5: Solve for x
    x = 190,621,204,373.72/494,320.40
  6. Step 6: Final answer
    x = 385,622.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.